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Finding the Fourth Proportional to 238,862.61, 329,644.35 and 136,919.66

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Solution

The fourth proportional to 238,862.61, 329,644.35 and 136,919.66 is: 188,957.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,862.61 : 329,644.35 = 136,919.66 : x
  2. Step 2: Convert to fraction form
    238,862.61/329,644.35 = 136,919.66/x
  3. Step 3: Cross multiply
    238,862.61x = 329,644.35 × 136,919.66
  4. Step 4: Simplify right side
    238,862.61x = 45,134,790,674.70
  5. Step 5: Solve for x
    x = 45,134,790,674.70/238,862.61
  6. Step 6: Final answer
    x = 188,957.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.